Home / 5,107.91-7,055.84-4,002.80

Finding the Fourth Proportional to 5,107.91, 7,055.84 and 4,002.80

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Solution

The fourth proportional to 5,107.91, 7,055.84 and 4,002.80 is: 5,529.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.91 : 7,055.84 = 4,002.80 : x
  2. Step 2: Convert to fraction form
    5,107.91/7,055.84 = 4,002.80/x
  3. Step 3: Cross multiply
    5,107.91x = 7,055.84 × 4,002.80
  4. Step 4: Simplify right side
    5,107.91x = 28,243,091.08
  5. Step 5: Solve for x
    x = 28,243,091.08/5,107.91
  6. Step 6: Final answer
    x = 5,529.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.